Home / 678,448.75-1,018,139.73-235,216.75

Finding the Fourth Proportional to 678,448.75, 1,018,139.73 and 235,216.75

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Solution

The fourth proportional to 678,448.75, 1,018,139.73 and 235,216.75 is: 352,986.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,448.75 : 1,018,139.73 = 235,216.75 : x
  2. Step 2: Convert to fraction form
    678,448.75/1,018,139.73 = 235,216.75/x
  3. Step 3: Cross multiply
    678,448.75x = 1,018,139.73 × 235,216.75
  4. Step 4: Simplify right side
    678,448.75x = 239,483,518,336.48
  5. Step 5: Solve for x
    x = 239,483,518,336.48/678,448.75
  6. Step 6: Final answer
    x = 352,986.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.